Largest Roman Catholic church in North America.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

This mysterious structure by the Washington Monument is a flood barrier designed to protect the White House against rising waters.

Look closely and you’ll notice that the color changes a third of the way up the tower.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

On Hilton Head Island this bronze King of the Sea rules all things briny—and lets you know if you’re late for lunch.

Wisconsin's most celebrated export gets the royal treatment on I-94.

The spaceship-like theater, which is still in use, was one of the most popular exhibits at the 1964 New York World's Fair.

The land is home to swimming ponies and a legendary 18th-century treasure.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

Down the road from where the Wright brothers lifted off is another flight tribute practically hidden from sight in the woods.

The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

This punny mirror of another Wisconsin attraction is exactly what it sounds like.

This secret gem of a toy store houses a rideable carousel populated with fantasy animals.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

Ever wanted to can Spam?

This beautiful vintage movie palace has seen little change in form or function since the 1920s.

These unusual rooms on wheels are holdovers from the 1960s.

Rumor has it the hot dog stand was targeted by two Russian nuclear missiles.

This pun was simply waiting to come to life, and one defense contractor made it so.

The iconic statue was moved to a new spot overlooking the James river after several years as a mascot for the local baseball team.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

A convincing little bit of ancient Egypt smack dab in Richmond, Virginia.

Inspired by a foil-wrapped potato, (seriously) the Markel Building has been deemed one of the 10 ugliest buildings in the world.